D600, 6D at ISO6400

In imaging-resource.com test details in red color fabric look much better in Nikon images than in Canon. Could you check in your test?

I know red has been a problem for recent Canon cameras, or at least that's what some say. I can do a test on red fabric later today if you are interested. In the meantime though you can look at the second example (red chili on the bottle), I think 6D did fine here. Moreover, it seemed to retain the green on the chili stalk better than D600. You can also look at the full scene of example one, the red on the book cover seems fine.